Abstract
An active base isolation system, which uses absolute vibration control technology, has been applied to the real full scale building. This building is the first active base isolation building all over the world. The absolute vibration control is an active vibration control method for base isolated structures to stay in the absolute space and to have vibration free environment, by applying control forces through actuators during earthquakes. Four 11001th hydraulic actuators, two in each horizontal direction, are installed in this building to reduce the seismic response to 1/10 of the conventional passive base isolation system.
